Note: If the load is uniformly on all 4 legs in a sling the following formula can be used in exceptional cases:
WLL (ton) = 4 x WLL for single leg sling x cos β
β = the legs angle against the vertical surface.
In case of a multi-leg sling, the maximum load of the master link must be at least equal to that of the sling. In the case of 3- and 4-leg slings, the maximum load of the transition link of the top link must be at least 1.6 times the maximum load of the chain in question.
In case of alternative dimensioning, the sling can be marked with the calculated maximum load for the angle in question.
WARNING! If the sling is to be used for a projected lift with a smaller lift angle (β) than 45° and thus a higher maximum load than the normal rated load, this must be communicated when ordering the sling.
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To calculate the working load limit (WLL) of a chain sling, divide the chain diameter squared by 32 to determine the WLL for a single leg at 0 degrees. For a 4-leg sling at 0-45 degrees, mul…
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